folder

noun

1. a person or thing that folds.
2. a printed sheet, as a circular or timetable, folded into a number of usually pagelike sections.
3. a folded sheet of light cardboard used to cover or hold papers, letters, etc., as in a file.
4. Computers. directory(def 4a).

noun

1. a binder or file for holding loose papers, etc
2. a folded circular
3. a machine for folding printed sheets
4. a person or thing that folds
5. computing another name for directory (def. 5)